<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class CommonUserIdentity extends CUserIdentity
{
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
		$c_user = Users::model()->find('username=:username and password=:password',array(':username'=>$this->username,':password'=>$this->password));	
		if($c_user == null){
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		}else{
			$user = array(
				'uid'=>$c_user->uid,
				'uname'=>$c_user->username,
				'email'=>$c_user->email,
			);
			$this->setState('global_user', $user);
			$this->errorCode=self::ERROR_NONE;
		}
		return !$this->errorCode;
	}
}